Bicycle-frame pump.



No. 658,867. Patented Oct. 2, I900. c. A. HUMANS.

BICYCLE FRAME PUMP.

- (Aplication filed Nov. -2, 1899.]

(No Model.)

WITNESSES INVENTOR fbQM Z/MZMX m: "cams PEYERS co. Puoro-Ll'mu, wnsmmnou. n. c.

UNITED STATES PATENT OFFICE.

CHARLES A. ROMANS, OF DANBURY, CONNECTICUT.

BICYCLE-FRAME PUMP.

SPECIFICATION forming part of Letters Patent No. 658,867. dated October 2, 1900.

Application filed November 2, 1899. Serial No. 735,566. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES A. RoMANs, a citizen of the United States, residing at Danbury, county of Fairfleld, State of Connectiout, have invented a new and useful Bicycle- Frame Pump, of which the following is a it is practically impossible for a rider to carry a large-sized pump about with himand that the inflation of a tire with the ordinary toolbag or pocket pump is not only slow, but exceedingly inconvenient and often painful to persons having tender hands.

In order to accomplish the desired result, I utilize the seat-post tube of either diamondframe or drop-frame cycles as the cylinder of a pump and provide the piston-rod with a convenient handpiece, which normally lies under the seat and which may beoperated to inflate either a front or. rear tire without moving the seat or disturbing any adjustment of the cycle.

In the accompanying part of this specification, Figure 1 is a view, partly in elevation and partlyin section, illustrating the application of my invention to a drop-frame cycle, it being understood that the invention is equally applicable to a diamond frame; and Fig. 2 is a detail View, on an enlarged scale, illustrating a mode of connecting the frame-pump with a tire for the purpose of inflation.

1O denotes a cyclewheel; 11, a seat-post tube; 12, a lower frame-tubeyli, a seatpost, which is provided with a longitudinal opening 14; and 15, a cycle-seat, shown as provided with a longitudinal opening 16. Within the seat-post tube is a piston 17 whose rod 18 extends through opening 14 in the seatpost and is provided at its upper end with a convenient handpiece 19, which normally lies under the seat, but is adapted to be drawings, forming moved upward through opening 16 in the seat for the purposes of use. The seat-post in practice serves as the plug for the upper end of the seat-post tube, which forms the pumpcylinder, packing (not shown) being of course used about the seat post, if found neces sary or desirable. At the lower end of the seat-post tube is a plug 20, which closes the lower end of the pump-cylinder.

21 denotes a valve at the lower end of the seat-post tube for use in inflating a rear tire, and 22 a valve on the lower frame-tube for use in inflating a front tire. These valves are, when not in use, covered by air-tight caps 23.

24 denotes a tube which extends from valve 22 through the lower frame-tube and through the crank-hanger 25 and passes through or connects with an opening through plug 20.

26 denotes a detachable flexible connection which is adapted to engage either of the valves 21 or 22 and the valves 27 of the tires. This connection requires but very little room 'and may be conveniently carried in the smallest pocket or bag, or even in a ladys purse, thereby enabling a lady to quickly and conveniently inflate either wheel of a cycle without hard work, without getting into an awkward and uncomfortable position, and without hurting the hands.

The operation is so simple that further explanation can hardly make it clearer. To inflate a tire, the rider removes the cap from the valve of the tire it is desired to inflate and from the corresponding valve on the frame and attaches flexible connection 26 to both valves. The operator then raises handpiece 19 up through opening 16 in the seat, as indicated by dotted lines in Fig. l, and proceeds to operate the pump in the usual manner. As soon as the tire is inflated the handpiece is pushed down through opening 16, so that it will lie out of the way under the seat, as shown in;:fulllines in Fig. l, the flexible connection removed from the valves, and the caps replaced.

Having thus described my invention, I claim In a cycle, the combination with the crankhanger and the lower frame-tube, of the seatpost tube formed as a pump-cylinder and having a plug 20 at its lower endadjacent to the crank-hanger, and the seat-post forming 1 rod extending upward through the seat-post lo a plug for the upper end of the seat-post and "having a handpieceat'its upper end. tube, said seat-post having a longitudinal In testimony whereof I aflix my signature opening, a valve 21 in the seat-post tube in presence of two witnesses.

above and adjacent to the plu 20 a valve 22 in the lower frame-tube, a t ube extending CHARLES ROMANS' from the valve 22 through the lower frame- Witnesses:

tube and the crank-hanger to the plug 20, WILLIAM MASSEY,

and a piston in the seat-post tube having its WALTER VAN HORTRAND. 

